Oil cooler



June 4, 193 J. FLOCKHART 2,003,744

' OIL COOLER Filed Jan. 51, 1955 2 Sheets-Sheet l Inventor I By AttomeyJ. FLOCKHART v OIL COOLER FiledJan. 51, 1935 2 Sheets-Sheet 2 Inventorrjmes Inc/42a Aftormy June 4, 1935.

Patented June 4, 1935 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to a novel oil cooler for engines which will befound particularly adaptable, because of its practical utility, to thatfield of structures embodying marine engines, or conversion motorsapplicable to aeroplanes, automobiles and similar conveyances.

In reducing the inventive conception to actual practice I find itexpedient and practical to employ a one-piece bronze casting, such as isimmune to rust and corrosion, leak-proof and otherwise thoroughlypractical and up to date, whereby to provide an ingenious structuresufiiciently inclusive in its features and special design to accomplishthe purposes for which it is intended.

Desiring to remain within the range of simplicity required of astructure of this classification, I have provided an all-metal one-piecearrangement, which it is believed, transcends in advantages andimportance similar prior art devices and is otherwise susceptible offulfilling the needs and requirement of the trade, thereby insuring itsunqualified endorsement as an unequaled achievement in this specificline of endeavor.

By way of critical observation it will be discerned by those skilled inthe art that the improved structure is characterized by a consolidationof elements which will promote longevity and will function as exclusiveand distinguish ing features in conditioning the oil as it is circulatedtherethrough, whereby to permit the temperature of said oil to beregulated by automatic Water cooled treatment.

Other features and advantages will be reflected from the accompanyingpictorial drawings and the description and concluding claim.

In. the drawings:

Figure 1 may be described either as a top or face view of the improvedoil cooler with parts appearing in elevation.

Figure 2 is an end view of Figure 1.

Figure 3 is a horizontal sectional view taken on the central plane ofthe device.

Figure 4 is a side or edge view.

Referring now to the drawings by distinguishing numerals, it will beobserved that the device, as a unit, is formed from a single metalcasting, it is preferably bronze or some suitable non-corrosive metal.The manifold or casing proper is denoted by the numeral 5 and may bedescribed as of general rectangular configuration in plan view with itslongitudinal ends slightly rounded or of convex form. This shape iscalculated to facilitate free flow of the oil as is obvious. On theexterior of the manifold I provide spaced parallel radiation fins 6.These contribute to the ultimate success of the device in effectivelycooling the oil, as is obvious. The ends of the manifold are formed witha plurality of threaded openings to accommodate removable plugs. These 5may be separately distinguished for purposes of convenience. That is to'say the openings or ports I (see Figure 3) may be described as the oilinlet and the one 8 diagonally in the opposite corner is denoted as theoutlet. Suitable oil circulating 10 pipes (not shown) are obviouslyattached to these nipples. The plugged opening 9 may be known as apriming hole while the similar plugged one in the bottom indicated at IUmay constitute a convenient drain. Incidentally, in practice, the devicemay well be placed in a substantially vertical position but this is ofcourse, not necessary.

The integrated oil conduit is located on the interior of the manifoldand includes an annulus I l which may be described as a coil and this ineffect defines a circulation hole I2 through which the oil'passes in asomewhat tortuous manner. The diametrically opposed coil connections l3and M are in alignment with the attaching necks l5 and I6 respectivelywhich extend to the exterior for connection with a water conductingpipe. It is obvious that by circulating water through the coil and atthe same time passing oil through the manifold in and around the coil,the oil is sufliciently cooled to substantially regulate the temperaturefor engine conditioning. The circumference of the coil II is preferablysuch that it serves as a baffle and obstruction so as to prevent the oilfrom flowing straight through without being subjected to the coolingaction of the water. Likewise, the cross sectional dimension or diameterof the coil is approximately one half of that of the transversedimension of the manifold. Therefore, the coil may be centrally locatedso that its top and bottom or opposite faces are disposed in parallelismto the corresponding walls of the manifold. By properly proportioningthe parts efficiency in circulation and cooling is assured.

It is thought that persons skilled in the art to which the inventionrelates will be able to obtain a clear understanding of the inventionafterconsidering the description in connection with the drawings.Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in shape, size and rearrangement of details coming withinthe field of invention claimed may be resorted to in actual practice, ifdesired.

Having thus described the invention, what is claimed as new is:

A one-piece casting comprising a substantially rectangular casing havingexternal fins provided 5 at one end with an oil inlet and at adiagonally opposite end with an oil outlet, said casing being furtherprovided with priming means and drain means, an annular coil locatedcentrally in the casing and having diametrically opposed connectionswith the end walls of the casing, said connections extending to theexterior to facilitate connection of a water supply pipe thereto.

JANIES FLOCKHART.

